Saw this on Ebay clearly a poor job at a restamping of a hard to find part. https://www.ebay.com/itm/325142693925?_trkparms=amclksrc%3DITM%26aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20211130125621%26meid%3Deb0989bab41d41f4bfbf2efc62eec5bc%26pid%3D101465%26rk%3D4%26rkt%3D4%26sd%3D234198812165%26itm%3D325142693925%26pmt%3D0%26noa%3D1%26pg%3D3817808%26brand%3DFomoco&_trksid=p3817808.c101465.m3507
The date looks to be 6L 2 despite what the ad says. It’s a stretch for sure.
I think that distributor is correct. The date code is missing the first digit-the 8.
Here is a picture of an original distributor.
BTW if you zoom in on my date code on mine it is 8B20. Which is after the 2-6-68 date they went to that variant dist and prior to my eng assy date.
The date is a bit of a mystery on ebay dist.
Restamped.
Look at the font size of the C8OF, it is much larger than normal. Plus, you can see that it is over stamped.
x2. I don’t claim to be an expert, but this look like an amateur attempt at best. There are definite remnants of a stamp underneath.
Plus obvious signs of a belt sander being used to remove previous markings.
A quick read of the description states some damage was done to the numbers by way of a screw driver as a cleaning aid. 
Boy you guys are tough, but I think you are right. If I had to buy a distributor, I would pass on that one.
Just trying to keep a fellow Cougar owner from parting with a bunch of cash on something that’s no good. $850 isn’t what it used to be even a year ago, but it’s still a chunk.
I reported it to eBay but it’s unlikely they will do anything. They claim to want a safe place for buyers. As long as it doesn’t cost them fees.